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Structural Degradation at the Surface of a TiO2-Based Nanomaterial Used in Cosmetics
Abstract
A number of commercialized nanomaterials incorporate TiO(2) nanoparticles. Studying their structural stability in media mimicking the environment or the conditions of use is crucial in understanding their potential eco-toxicological effects. We focused here on a hydrophobic TiO(2) nanoparticle-based formulation used in cosmetics: T-Lite SF. It is composed of a TiO(2) core, coated with two successive protective layers of Al(OH)(3), and polydimethylsiloxane. Soon after contact with water (pH = 5, low ionic strength), the T-Lite SF becomes hydrophilic and form aggregates. During this aging, 90%wt of the total Si of the organic layer is desorbed, and the PDMS remaining at the surface is oxidized. The Al(OH)(3) layer is also affected but remains sorbed at the surface. This remaining Al-based layer still protects from the production of superoxide ions from the photoactive/phototoxic TiO(2) core in our experimental conditions.
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Citations
Cited by
Environmental concentrations of engineered nanomaterials: Review of modeling and analytical studies
Gottschalk, F., Sun, T., & Nowack, B. (2013) · Environmental Pollution · doi:10.1016/j.envpol.2013.06.003 · Cited by 1,092
Gondikas, A. P., Kammer, F. V. D., Reed, R. B., Wagner, S., Ranville, J. F., & Hofmann, T. (2014) · Environmental Science & Technology · doi:10.1021/es405596y · Cited by 396
Wagner, S., Gondikas, A., Neubauer, E., Hofmann, T., & von der Kammer, F. (2014) · Angewandte Chemie International Edition · doi:10.1002/anie.201405050 · Cited by 332
Characterization of silver release from commercially available functional (nano)textiles
Lorenz, C., Windler, L., von Goetz, N., Lehmann, R. P., Schuppler, M., Hungerbühler, K., Heuberger, M., & Nowack, B. (2012) · Chemosphere · doi:10.1016/j.chemosphere.2012.04.063 · Cited by 264
Cosmetic Ingredients as Emerging Pollutants of Environmental and Health Concern. A Mini-Review
Juliano, C., & Magrini, G. (2017) · Cosmetics · doi:10.3390/cosmetics4020011 · Cited by 259
Metadata
- Authors
- Auffan, M., Pedeutour, M., Rose, J., Masion, A., Ziarelli, F., Borschneck, D., Chaneac, C., Botta, C., Chaurand, P., Labille, J., & Bottero, J.-Y.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-03-11
- Volume
- 44
- Issue
- 7
- Pages
- 2689-2694
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2071920646
- Cited by
- 208
- References
- 0
- FWCI
- 8.34
- Type
- journal article
- Language
- en
- Open access
- closed
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- Auffan, M., Pedeutour, M., Rose, J., Masion, A., Ziarelli, F., Borschneck, D., Chaneac, C., Botta, C., Chaurand, P., Labille, J., & Bottero, J.-Y. (2010). Structural Degradation at the Surface of a TiO2-Based Nanomaterial Used in Cosmetics. Environmental Science & Technology. https://doi.org/10.1021/es903757q
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